Dripping overflow outside

Discussion in 'Plumbers' Talk' started by Stemcell, Oct 9, 2017.

  1. Stemcell

    Stemcell New Member

    Dear members!

    I have just come back from holiday and came home to a dripping overflow pipe from the hot water tank that is in the airing cupboard.
    The water is cold when I check.
    The boiler is working fine, both hot water and heating zones are working fine from the nest thermostat.

    I believe water tank is an unvented megaflo . I have re-instated the air bubble however it's just made it worse.
    Shall I try again? And do further checks?
    What else to try or just call the plumber?

    Thank you for reading, and any assistance you can provide.

  2. The Teach

    The Teach Screwfix Select

    When you were away on holiday,the incoming pressure could have crept up for enough time to trip the safety valve,you need a g3 plumber to check your incoming water is pressure regulated to suit the cylinder and repair as necessary.

    These units require an annual safety/service inspection,is this due ?

    Your megaflo service agent will have tools to check incoming pressure and be able to sort it.

    One good reason why its a good idea to isolate the mains water when there is no long term demand ;)

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